mktemp — make a unique temporary filename
Never use this function; see BUGS.
generates a unique temporary filename from
template. The last six
template must be XXXXXX and
these are replaced with a string that makes the filename
unique. Since it will be modified,
template must not be a string
constant, but should be declared as a character array.
mktemp() function always
a unique name was created, the last six bytes of
template will have been
modified in such a way that the resulting name is unique
(i.e., does not exist already) If a unique name could not be
made an empty string, and
is set to indicate the error.
For an explanation of the terms used in this section, see attributes(7).
implementations follow 4.3BSD and replace XXXXXX by the
current process ID and a single letter, so that at most 26
different names can be returned. Since on the one hand the
names are easy to guess, and on the other hand there is a
race between testing whether the name exists and opening the
file, every use of
a security risk. The race is avoided by mkstemp(3) and mkdtemp(3).
This page is part of release 4.07 of the Linux
man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
Copyright (C) 1993 David Metcalfe (davidprism.demon.co.uk)
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Linux libc source code
Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
386BSD man pages
Modified Sat Jul 24 18:48:06 1993 by Rik Faith (faithcs.unc.edu)
Modified Fri Jun 23 01:26:34 1995 by Andries Brouwer (aebcwi.nl)
(prompted by Scott Burkett <scottbIntNet.net>)
Modified Sun Mar 28 23:44:38 1999 by Andries Brouwer (aebcwi.nl)